[Build error] Unable to find OpenCL includes

[tpkessler]

I'm using Arch Linux with cmake 3.18 and I'm unable to build ROCclr with the current build instructions / CMakeLists.txt. The problem seems to be that find_library also looks for a library in /opt/rocm which is not present of course as ROCm OpenCL Runtime needs ROCclr. Moreover, ROCclr only needs the include files from OpenCL, not the full package.
I successfully build ROCclr with the patched CMakeLists.txt from my PR #16 .

[baryluk]

Did you try setting -DCMAKE_PREFIX_PATH instead?

I had a success building ROCclr this way.

I think there are some extensions in ROCm OpenCL Runtime library code that is not present in upstream Khronos code, so that is why it uses AMD's headers and code right now.